| (19) |
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(11) |
EP 0 126 443 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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05.08.1987 Bulletin 1987/32 |
| (43) |
Date of publication A2: |
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28.11.1984 Bulletin 1984/48 |
| (22) |
Date of filing: 17.05.1984 |
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| (84) |
Designated Contracting States: |
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AT BE DE FR GB IT NL SE |
| (30) |
Priority: |
18.05.1983 US 495657
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| (71) |
Applicant: THE STANDARD OIL COMPANY |
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() |
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| (72) |
Inventors: |
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- Stevens, Stanley E., Jr.
()
- Burgess, Wilella Daniels
()
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| (54) |
A process for the selective preparation of microorganisms capable of reproducible
reduction of sulfur and use of the microorganism for microbial desulfurization of
coal |
(57) A process for the preparation of microorganisms, ATCC No. 39 327 which are capable
of reproducible reduction of sulfur, particularly organic sulfur, in coal wherein
the novel microorganisms are grown in situ enriched with sulfur compounds and subsequently
grown in the presence of a coal substrate and nutrient medium while maintaining an
essentially neutral pH. Contacting an aqueous coal slurry with the novel microorganism
of the present invention provides coal having reduced organic sulfur content.